United States Department of Agriculture Natural Resources Conservation Service A product of the National Cooperative Soil Survey, a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local participants Custom Soil Resource Report for Craighead County, Arkansas Philadelphia Farm August 20, 2013
Preface Soil surveys contain information that affects land use planning in survey areas. They highlight soil limitations that affect various land uses and provide information about the properties of the soils in the survey areas. Soil surveys are designed for many different users, including farmers, ranchers, foresters, agronomists, urban planners, community officials, engineers, developers, builders, and home buyers. Also, conservationists, teachers, students, and specialists in recreation, waste disposal, and pollution control can use the surveys to help them understand, protect, or enhance the environment. Various land use regulations of Federal, State, and local governments may impose special restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions. The information is intended to help the land users identify and reduce the effects of soil limitations on various land uses. The landowner or user is responsible for identifying and complying with existing laws and regulations. Although soil survey information can be used for general farm, local, and wider area planning, onsite investigation is needed to supplement this information in some cases. Examples include soil quality assessments (http://soils.usda.gov/sqi/) and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center (http://offices.sc.egov.usda.gov/locator/app? agency=nrcs) or your NRCS State Soil Scientist (http://soils.usda.gov/contact/ state_offices/). Great differences in soil properties can occur within short distances. Some soils are seasonally wet or subject to flooding. Some are too unstable to be used as a foundation for buildings or roads. Clayey or wet soils are poorly suited to use as septic tank absorption fields. A high water table makes a soil poorly suited to basements or underground installations. The National Cooperative Soil Survey is a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local agencies. The Natural Resources Conservation Service (NRCS) has leadership for the Federal part of the National Cooperative Soil Survey. Information about soils is updated periodically. Updated information is available through the NRCS Soil Data Mart Web site or the NRCS Web Soil Survey. The Soil Data Mart is the data storage site for the official soil survey information. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require alternative means 2
for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider and employer. 3
Contents Preface...2 Soil Map...5 Soil Map...6 Legend...7 Map Unit Legend...8 Map Unit Descriptions...8 Craighead County, Arkansas...10 6 Brandon-Saffell association, moderately steep...10 9 Calloway silt loam, 0 to 1 percent slopes...11 10 Calloway silt loam, 1 to 3 percent slopes...12 11 Collins silt loam, occasionally flooded...13 21 Falaya silt loam, occasionally flooded...14 30 Loring silt loam, 3 to 8 percent slopes...15 31 Loring silt loam, 8 to 12 percent slopes...16 Soil Information for All Uses...18 Suitabilities and Limitations for Use...18 Land Classifications...18 Farmland Classification (Philadelphia Farm)...18 4
Soil Map The soil map section includes the soil map for the defined area of interest, a list of soil map units on the map and extent of each map unit, and cartographic symbols displayed on the map. Also presented are various metadata about data used to produce the map, and a description of each soil map unit. 5
704200 704500 704800 705100 705400 705700 706000 90 42' 13'' W 90 44' 19'' W Custom Soil Resource Report Soil Map 706300 706600 706900 707200 35 54' 9'' N 3973600 3973600 3973900 3973900 3974200 3974200 3974500 3974500 3974800 3974800 3975100 3975100 3975400 3975400 35 54' 9'' N 35 53' 3'' N 704500 704800 705100 705400 705700 Map Scale: 1:14,500 if printed on A landscape (11" x 8.5") sheet. N Meters 1200 Feet 0 500 1000 2000 3000 Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 15N WGS84 0 200 400 706000 706300 706600 706900 707200 90 42' 13'' W 90 44' 19'' W 704200 800 6 35 53' 3'' N
MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Map Unit Polygons Soil Map Unit Lines Soil Map Unit Points Special Point Features Blowout Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:20,000. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: http://websoilsurvey.nrcs.usda.gov Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Craighead County, Arkansas Survey Area Data: Version 11, Sep 28, 2012 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Nov 26, 2010 Oct 9, 2011 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. 7
Map Unit Legend Craighead County, Arkansas (AR031) Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI 6 Brandon-Saffell association, moderately steep 9 Calloway silt loam, 0 to 1 percent slopes 10 Calloway silt loam, 1 to 3 percent slopes 11 Collins silt loam, occasionally flooded 21 Falaya silt loam, occasionally flooded 30 Loring silt loam, 3 to 8 percent slopes 31 Loring silt loam, 8 to 12 percent slopes 85.3 15.3% 17.9 3.2% 2.1 0.4% 208.7 37.4% 203.5 36.5% 8.3 1.5% 32.0 5.7% Totals for Area of Interest 557.8 100.0% Map Unit Descriptions The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however, the soils are natural phenomena, and they have the characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes. Consequently, every map unit is made up of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils. Most minor soils have properties similar to those of the dominant soil or soils in the map unit, and thus they do not affect use and management. These are called noncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management. These are called contrasting, or dissimilar, components. They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with 8
some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, however, onsite investigation is needed to define and locate the soils and miscellaneous areas. An identifying symbol precedes the map unit name in the map unit descriptions. Each description includes general facts about the unit and gives important soil properties and qualities. Soils that have profiles that are almost alike make up a soil series. Except for differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement. Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. Some map units are made up of two or more major soils or miscellaneous areas. These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps. The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha-Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha- Beta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example. 9
Craighead County, Arkansas 6 Brandon-Saffell association, moderately steep Map Unit Setting Elevation: 150 to 450 feet Mean annual precipitation: 36 to 53 inches Mean annual air temperature: 50 to 70 degrees F Frost-free period: 225 to 265 days Map Unit Composition Brandon and similar soils: 50 percent Saffell and similar soils: 30 percent Minor components: 20 percent Description of Brandon Setting Landform: Loess hills Landform position (three-dimensional): Side slope Down-slope shape: Convex Across-slope shape: Linear Parent material: Loess over gravelly marine deposits Properties and qualities Slope: 12 to 20 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 1.98 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: High (about 10.1 inches) Interpretive groups Farmland classification: Not prime farmland Land capability (nonirrigated): 6e Hydrologic Soil Group: B Typical profile 0 to 5 inches: Silt loam 5 to 39 inches: Silty clay loam 39 to 72 inches: Very gravelly sandy clay loam Description of Saffell Setting Landform: Hills Landform position (three-dimensional): Side slope Down-slope shape: Linear Across-slope shape: Convex Parent material: Loamy and gravelly marine deposits Properties and qualities Slope: 12 to 20 percent 10
Depth to restrictive feature: More than 80 inches Drainage class: Well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 1.98 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: Low (about 5.7 inches) Interpretive groups Farmland classification: Not prime farmland Land capability (nonirrigated): 6e Hydrologic Soil Group: B Typical profile 0 to 3 inches: Gravelly fine sandy loam 3 to 15 inches: Very gravelly silt loam 15 to 58 inches: Very gravelly sandy clay loam 58 to 72 inches: Gravelly sandy loam Minor Components Loring Percent of map unit: 10 percent Memphis Percent of map unit: 10 percent 9 Calloway silt loam, 0 to 1 percent slopes Map Unit Setting Mean annual precipitation: 36 to 53 inches Mean annual air temperature: 50 to 70 degrees F Frost-free period: 225 to 265 days Map Unit Composition Calloway and similar soils: 80 percent Minor components: 20 percent Description of Calloway Setting Landform: Terraces Landform position (three-dimensional): Tread Down-slope shape: Concave Across-slope shape: Linear Properties and qualities Slope: 0 to 1 percent Depth to restrictive feature: 24 to 32 inches to fragipan Drainage class: Somewhat poorly drained 11
Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table: About 7 to 18 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: Moderate (about 6.1 inches) Interpretive groups Farmland classification: All areas are prime farmland Land capability (nonirrigated): 2w Hydrologic Soil Group: C Typical profile 0 to 6 inches: Silt loam 6 to 28 inches: Silt loam 28 to 66 inches: Silt loam 66 to 72 inches: Silt loam Minor Components Calhoun Percent of map unit: 10 percent Landform: Stream terraces Henry Percent of map unit: 5 percent Landform: Stream terraces Aqualfs Percent of map unit: 5 percent Landform: Depressions Down-slope shape: Concave Across-slope shape: Convex 10 Calloway silt loam, 1 to 3 percent slopes Map Unit Setting Mean annual precipitation: 36 to 53 inches Mean annual air temperature: 50 to 70 degrees F Frost-free period: 225 to 265 days Map Unit Composition Calloway and similar soils: 85 percent Minor components: 15 percent Description of Calloway Setting Landform: Terraces Landform position (three-dimensional): Tread Down-slope shape: Convex Across-slope shape: Linear 12
Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: 24 to 32 inches to fragipan Drainage class: Somewhat poorly drained Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table: About 7 to 18 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: Moderate (about 6.1 inches) Interpretive groups Farmland classification: All areas are prime farmland Land capability (nonirrigated): 2e Hydrologic Soil Group: C Typical profile 0 to 6 inches: Silt loam 6 to 28 inches: Silt loam 28 to 66 inches: Silt loam 66 to 72 inches: Silt loam Minor Components Calhoun Percent of map unit: 5 percent Landform: Stream terraces Foley Percent of map unit: 5 percent Landform: Stream terraces Aqualfs Percent of map unit: 5 percent Landform: Depressions Down-slope shape: Concave Across-slope shape: Convex 11 Collins silt loam, occasionally flooded Map Unit Setting Mean annual precipitation: 36 to 53 inches Mean annual air temperature: 50 to 70 degrees F Frost-free period: 225 to 265 days Map Unit Composition Collins and similar soils: 95 percent Minor components: 5 percent 13
Description of Collins Setting Landform: Drainageways Down-slope shape: Concave Across-slope shape: Linear Parent material: (loess-like) silty alluvium Properties and qualities Slope: 0 to 1 percent Depth to restrictive feature: More than 80 inches Drainage class: Moderately well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 1.98 in/hr) Depth to water table: About 24 to 60 inches Frequency of flooding: OccasionalNone Frequency of ponding: None Available water capacity: Very high (about 13.0 inches) Interpretive groups Farmland classification: All areas are prime farmland Land capability (nonirrigated): 2w Hydrologic Soil Group: C Typical profile 0 to 7 inches: Silt loam 7 to 72 inches: Silt loam Minor Components Aquents Percent of map unit: 5 percent Landform: Depressions Down-slope shape: Concave Across-slope shape: Convex 21 Falaya silt loam, occasionally flooded Map Unit Setting Elevation: 250 to 450 feet Mean annual precipitation: 36 to 53 inches Mean annual air temperature: 50 to 70 degrees F Frost-free period: 225 to 265 days Map Unit Composition Falaya and similar soils: 95 percent Minor components: 5 percent 14
Description of Falaya Setting Landform: Drainageways Down-slope shape: Convex Across-slope shape: Linear Parent material: Silty alluvium Properties and qualities Slope: 0 to 1 percent Depth to restrictive feature: More than 80 inches Drainage class: Somewhat poorly drained Capacity of the most limiting layer to transmit water (Ksat): Moderately low to high (0.06 to 1.98 in/hr) Depth to water table: About 12 to 24 inches Frequency of flooding: OccasionalNone Frequency of ponding: None Available water capacity: Very high (about 12.2 inches) Interpretive groups Farmland classification: All areas are prime farmland Land capability (nonirrigated): 2w Hydrologic Soil Group: D Typical profile 0 to 6 inches: Silt loam 6 to 48 inches: Silt loam 48 to 72 inches: Silt loam Minor Components Aquents Percent of map unit: 5 percent Landform: Depressions Down-slope shape: Concave Across-slope shape: Convex 30 Loring silt loam, 3 to 8 percent slopes Map Unit Setting Mean annual precipitation: 36 to 53 inches Mean annual air temperature: 50 to 70 degrees F Frost-free period: 225 to 265 days Map Unit Composition Loring and similar soils: 100 percent Description of Loring Setting Landform: Loess hills 15
Landform position (three-dimensional): Nose slope Down-slope shape: Convex Across-slope shape: Linear Properties and qualities Slope: 3 to 8 percent Depth to restrictive feature: 24 to 32 inches to fragipan Drainage class: Moderately well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table: About 16 to 30 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: Low (about 5.9 inches) Interpretive groups Farmland classification: Farmland of statewide importance Land capability (nonirrigated): 3e Hydrologic Soil Group: C Typical profile 0 to 2 inches: Silt loam 2 to 28 inches: Silty clay loam 28 to 72 inches: Silty clay loam 31 Loring silt loam, 8 to 12 percent slopes Map Unit Setting Mean annual precipitation: 36 to 53 inches Mean annual air temperature: 50 to 70 degrees F Frost-free period: 225 to 265 days Map Unit Composition Loring and similar soils: 100 percent Description of Loring Setting Landform: Loess hills Landform position (three-dimensional): Side slope Down-slope shape: Convex Across-slope shape: Linear Properties and qualities Slope: 8 to 12 percent Depth to restrictive feature: 24 to 32 inches to fragipan Drainage class: Moderately well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table: About 16 to 30 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: Low (about 5.9 inches) 16
Interpretive groups Farmland classification: Not prime farmland Land capability (nonirrigated): 4e Hydrologic Soil Group: C Typical profile 0 to 2 inches: Silt loam 2 to 28 inches: Silty clay loam 28 to 72 inches: Silty clay loam 17
Soil Information for All Uses Suitabilities and Limitations for Use The Suitabilities and Limitations for Use section includes various soil interpretations displayed as thematic maps with a summary table for the soil map units in the selected area of interest. A single value or rating for each map unit is generated by aggregating the interpretive ratings of individual map unit components. This aggregation process is defined for each interpretation. Land Classifications Land Classifications are specified land use and management groupings that are assigned to soil areas because combinations of soil have similar behavior for specified practices. Most are based on soil properties and other factors that directly influence the specific use of the soil. Example classifications include ecological site classification, farmland classification, irrigated and nonirrigated land capability classification, and hydric rating. Farmland Classification (Philadelphia Farm) Farmland classification identifies map units as prime farmland, farmland of statewide importance, farmland of local importance, or unique farmland. It identifies the location and extent of the soils that are best suited to food, feed, fiber, forage, and oilseed crops. NRCS policy and procedures on prime and unique farmlands are published in the "Federal Register," Vol. 43, No. 21, January 31, 1978. 18
704200 704500 704800 705100 705400 705700 706000 90 42' 13'' W 90 44' 19'' W Custom Soil Resource Report Map Farmland Classification (Philadelphia Farm) 706300 706600 706900 707200 35 54' 9'' N 3973600 3973600 3973900 3973900 3974200 3974200 3974500 3974500 3974800 3974800 3975100 3975100 3975400 3975400 35 54' 9'' N 35 53' 3'' N 704500 704800 705100 705400 705700 Map Scale: 1:14,500 if printed on A landscape (11" x 8.5") sheet. N Meters 1200 Feet 0 500 1000 2000 3000 Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 15N WGS84 0 200 400 706000 706300 706600 706900 707200 90 42' 13'' W 90 44' 19'' W 704200 800 19 35 53' 3'' N
MAP LEGEND Area of Interest (AOI) Soils Area of Interest (AOI) Soil Rating Polygons Not prime farmland All areas are prime farmland Prime farmland if drained Prime farmland if protected from flooding or not frequently flooded during the growing season Prime farmland if irrigated Prime farmland if drained and either protected from flooding or not frequently flooded during the growing season Prime farmland if irrigated and drained Prime farmland if irrigated and either protected from flooding or not frequently flooded during the growing season Soil Rating Lines Prime farmland if subsoiled, completely removing the root inhibiting soil layer Prime farmland if irrigated and the product of I (soil erodibility) x C (climate factor) does not exceed 60 Prime farmland if irrigated and reclaimed of excess salts and sodium Farmland of statewide importance Farmland of local importance Farmland of unique importance Not rated or not available Not prime farmland All areas are prime farmland Prime farmland if drained Prime farmland if protected from flooding or not frequently flooded during the growing season Prime farmland if irrigated Prime farmland if drained and either protected from flooding or not frequently flooded during the growing season Prime farmland if irrigated and drained Prime farmland if irrigated and either protected from flooding or not frequently flooded during the growing season Prime farmland if subsoiled, completely removing the root inhibiting soil layer Prime farmland if irrigated and the product of I (soil erodibility) x C (climate factor) does not exceed 60 Prime farmland if irrigated and reclaimed of excess salts and sodium Farmland of statewide importance Farmland of local importance Soil Rating Points Farmland of unique importance Not rated or not available Not prime farmland All areas are prime farmland Prime farmland if drained Prime farmland if protected from flooding or not frequently flooded during the growing season Prime farmland if irrigated Prime farmland if drained and either protected from flooding or not frequently flooded during the growing season Water Features Prime farmland if irrigated and drained Prime farmland if irrigated and either protected from flooding or not frequently flooded during the growing season Prime farmland if subsoiled, completely removing the root inhibiting soil layer Prime farmland if irrigated and the product of I (soil erodibility) x C (climate factor) does not exceed 60 Prime farmland if irrigated and reclaimed of excess salts and sodium Farmland of statewide importance Farmland of local importance Farmland of unique importance Not rated or not available 20
MAP INFORMATION Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:20,000. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: http://websoilsurvey.nrcs.usda.gov Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Craighead County, Arkansas Survey Area Data: Version 11, Sep 28, 2012 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Nov 26, 2010 Oct 9, 2011 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. 21
Table Farmland Classification (Philadelphia Farm) Farmland Classification Summary by Map Unit Craighead County, Arkansas (AR031) Map unit symbol Map unit name Rating Acres in AOI Percent of AOI 6 Brandon-Saffell association, moderately steep 9 Calloway silt loam, 0 to 1 percent slopes 10 Calloway silt loam, 1 to 3 percent slopes 11 Collins silt loam, occasionally flooded 21 Falaya silt loam, occasionally flooded 30 Loring silt loam, 3 to 8 percent slopes 31 Loring silt loam, 8 to 12 percent slopes Not prime farmland 85.3 15.3% All areas are prime farmland All areas are prime farmland All areas are prime farmland All areas are prime farmland Farmland of statewide importance 17.9 3.2% 2.1 0.4% 208.7 37.4% 203.5 36.5% 8.3 1.5% Not prime farmland 32.0 5.7% Totals for Area of Interest 557.8 100.0% Rating Options Farmland Classification (Philadelphia Farm) Aggregation Method: No Aggregation Necessary Tie-break Rule: Lower 22